so the bright orange is the yolk sac? And they eat from that for a few weeks? Do they need any other nourishment?

correct, the bright orange thing is the yolk sack. once they 'consume' that, hunger motivates them to leave the bucket thru the overflow pipe and they are off on their own! i wonder if i'll get fathers day cards from any of them?

99% of the eggs are hatched, only a dozen or two to go. I expect they might be dead ones that have not turned white yet.The TU count is at 831 as of this morning. At ~1300 they should be swimming away.

Day 21, TU 493:Just checked the salmon, they are hiding in among the rocks at the bottom of the buckets. It's hard to get a photo, I had to get a focused flash light to be able to see them.Water temp has dropped to 40F due to the frost we have had the last 4 days. Stream water level has dropped 6" plus since the high point when we had rain.